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Finding the Fourth Proportional to 11,994.90, 17,992.08 and 3,229.92

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Solution

The fourth proportional to 11,994.90, 17,992.08 and 3,229.92 is: 4,844.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,994.90 : 17,992.08 = 3,229.92 : x
  2. Step 2: Convert to fraction form
    11,994.90/17,992.08 = 3,229.92/x
  3. Step 3: Cross multiply
    11,994.90x = 17,992.08 × 3,229.92
  4. Step 4: Simplify right side
    11,994.90x = 58,112,979.03
  5. Step 5: Solve for x
    x = 58,112,979.03/11,994.90
  6. Step 6: Final answer
    x = 4,844.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.